.slidenote { 
width: 540px;
 height: 140px;
 background: #FBEC78;
 padding: 1em;
 }
 
.slidenote img {
 float: left;
 margin-left: -2em;
 margin-top: -2em;
 }
 
.slidenote img:hover {
 margin-top: -1.95em;
 }